Re: [Swig-user] perl object pointers & multiple SWIG modules

[Marcelo M. <mm...@ac...>]

If you are not using SWIG from the CVS repository, you need to try it.

There are several issues related to swig + perl + separate .i files + 
%import that
are now resolved.

Marcelo


Wade Brainerd wrote:

> Hello,
>
> I have a system of SWIG-generated Perl modules that work together to 
> process data.  Each one comes from a separate C++ project with its own 
> .i file, but they operate on common C++ data types that are shared 
> between the modules.
>
> There is module Data, which wraps class CommonData and implements a 
> function Create() that returns a new CommonData.
>
> Then there is module Process, which has a function DoWork() which 
> takes a pointer CommonData and returns a new CommonData.  The SWIG 
> wrapper for module Process only forward declares class CommonData, it 
> does not include wrappers for the entire class.
>
> The problem is that the CommonData object returned by 
> Process::DoWork() is a fundamentally different Perl type from the one 
> returned by Data::Create(), all its members are gone.  I would like to 
> somehow bless the CommonData object returned by Process to force it to 
> actually be Data::CommonData (the real type) instead of 
> Process::CommonData (an empty type).  Is there a way to do this in Perl?
>
> I tried bless $data, Data::CommonData; but it complains that $data is 
> a scalar, not a ref.  Does SWIG consider empty class declarations to 
> be scalars instead of objects for some reason?
>
> Thanks for your help,
>
> Wade Brainerd
> Activision Central Technology
>
>
>
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